Clutch mechanism for mining-machine trucks



7 1,670,154 M. P. HOLMES CLUTCH MECHANISM FOR MINING MACHINE TRUCKS May 15, 1928.

Filed. Sept. 26, 1921 5) (6%?707 nay.

Patented May '15, 1928;

Hire-2 MORRIS MACHINERY JGOMPANY, A oonronn rion on mnssAei-rusET-Ts;

CLUTCH MECHANISM "non mrn ne irnaoninn TRUCKS;

Applicationfiled September as, 1921. Serial Nb. 503,346;

invention relates to mining machine trucks. v

my improved; construction. Will, however,

hereinafter more fully appear.

In the accompanying. drawings I have shown for purposes-oiillustration one .em-

bodiment which :my 1 invention may v assume in practice.

In :these-idrawings Fig.1 isia (plan View ofa mining machine truck equipped with..thisior1n of 'my 1m-..

provement. i

Fig; '2 is a detail sectional View on line:- 22 s of. I ig.z '1,v the v parts i being shown in clutch; engagingposition,

Fig. I 3 I is an enlarged detail plan 7 View of the controlling leiver mechanism. Y

Figh /i is,-.anenlargedfragmentary detail. sectionalmview showing the, control lever mechanisniin clutchmeleasing position;

In. this illustrative construction I have v shownv a mining machine 7 truck including a adapted to carry a mining machine. on a minmg machine-receiving 5 portion 3, therein; as

ed'tohave its heels driven by a rotating truck driving member 4E adapted ,to i mesh with such apart. Herein this-member'is shaft 15 journaled v on-ethe truck frame and the latter is operatively connected toa Worm as hereinafter described; to: aa transverse;v

truckidriving shaft 7,,in turn. connected belt tightenenlZ. I

In any-improved construction, :it qwillhbe obseifnedxthat a pulley -13/f0nthe reel belt '1].-

is disposed on onelside of the WOI'IIl; gee-n6 and on the; opposite side of the "Wormgean,

r. I nonmns; or otnnnmonn new mimrsnrnn; nssrenon ro SULLIVAN: 1

fromiia shaft and truckldrive' controlling; friction clutch Herein, this'olutch'jincludesI-j a sleeve l6.jt0 .whieh' the pulley isfoonneoted .anjexternal clutch member 71%, keyed zit-15 to by a .couplinglig' and a cooperating iin't'ernal if clutch member 18, .hereinoi thetoggleopem atedeXpansibl'ei-type and operable bya meme. ber 19 .movable'. longitudinally of the shaftll As shown, this member. 19 ,is operated by; a

vertically disposed shipper yoke-20, pivoted Q at'its lower end at 21 beneath the shaftand I] having spaced extensions 22 e on} its, upperl :end :to' vhich an" operatingw,;member. 23ffis operatively connected. asfiher'einaft'er, de'-, soribedf As shown, this operating member'- is of bell 'fc'rank [form with its lmndlep pge I tion longer-than its. other arm and has, lugs.

' 24 on its short arm extending into.qandjpiii-.

oted at 25.-in a ,slot;26 in'a member. QTpiV- 5 otall'y connected fat; 28 atonev end to th ext-Q tensions 22 on the member 20" anda'havings,"

its other end slid'able ;longitudinally of th shaft? onfa surfac'e29 onthe truckir'anial. r herein [formed (on a lubricant casing 30 fen-f closing the. Worm and avorm, gear.v Atten 'f. ,tionisalso.directed't'o the fact thatitheoper-l ating member 28 is provided with a lug,3 l';

gengageablejWiththemember 27fat thele fttILlCk frame 1 mounted .-on-. Wheelsl2' ands.

hand, end of theeslot 26 e Fig. 2). andis'also.

openatively connected.at a point at th'eletftfi' of thepiirot 25 (same figure) andby, a pivot pin 32 tolone. endiof a link.133;slidabl "and I pivotally .connected 'to ahstationary part of p the. frame, herein between upstanding lugs part of amining maohineithereon, through a 34 on the. casingfiOiand throughflamember;

35 connecting said lugs'and provided-withl'al transverse openings 36; therein] in .whichla rotatable "with a vertically. disposed worm threaded ine'mbr 37 forming an extension of v.

the. link .is. longitudinally; and. angularly ,movable .Withinlimits established by nuts 38 gear-a6 which is itself. operatively connected t on the end .of'the threaded .memberJ Attenyfl tionvis alsodireCtecl to therrfa'ct-that on.the.

shaft'7and'on the opposite side o'fithe, meme.v

her. 20 from the-friction cliitclna brake drum '39 .i's' provided, ithendrumhaving a cooper-f :ating brake; band 4Q operable. by any suitable operatinglever. as, the lever. 41..

elements-1e and .18 are connected or nottho sleeve 16 will be actuated in such manner as to permit the pulley 13 to'drivethe reel provided the belt tightener 12' is thrown down. More specifically, it will be observed that in the position shown in Fig. 2 the parts 14 and 18 will beclutched together and the members 27 and 33 will be under tension and owing to the nature of the connections the parts will be 'auton'iatically held in this clutch engaging position, the portion 31 then engaging thetop of the member 27. When it is desired to release the clutch, the member 23 will be swung in a clockwise direction and this will permit the pivot 32 to move around the pivot and substantially the distance between these pivots will be added to the distance between the points 22' i and 35, and it will be evident that if the clutch should stick, by throwing the parts further backward even than is shown in Fig. 4, the clutch could be positively released. Owing [to the weight of the lever 23 being to'the rightof its pivot point when in the 7 position shown in Fig. 4, the parts will tend to maintain that position also. 7

As a result of my improvement it will be observed that it'is possible to drive the reel 10 from the pulley13 disposed on the opposite side of the worm gear casing from the friction clutch while still operating the friction'controlling mechanism froma point at the side of the truck adjacent the truck brake operating mechanism, that is, both of these mechanisms are conveniently operable from the operators position. It is also to be noted that the connections for operating the clutch are of such nature that but little power is required and the partsare main tained in their off and on positions respec ,tively. y p

While I have in this application specifically described one embodiment-which my invention may assume in practice, it will be understood that this form of the same I parting from its spirit is shown for purposes ofv illustration and axially of said element for forcing them into viric tion al engagement and interrupting frictional engagement thereof, and mechanism for moving said last'mentioned elementv toeliect clutching relation comprising a plurality vof separately pivoted elements and means including an operatlng member pivotally mounted on one of said pivoted elements for placing said elements under increasing tension as the clutch is loaded.

2. In a clutch mechanism, coaxial driving and driven friction clutch elements, and

means including an element reciprocable coaxially of said elementsfor forcing them into frictional engagement and interrupting frictional engagementthereof, and mechanism for moving said ,last mentioned element to effect clutching rela tion including a pluralityof longitudinally differently positioned movable connector elements placed under increasing tension on loading of said clutch and a manually movable portion con-- necting the adjacentendsof said last-mentioned elements and placed under increasing compression when said clutch is loaded, said portion being pivotally mounted on one of said last mentioned elements.

3.; In a clutch mechanism, coaxial drivmg and driven friction clutch elements, and

means including an element reciprocable coaxially of said elements for forcing them into frictional engagement and, interrupting frictional engagement thereof, and mechanism for moving said last mentioned element to etlect'clutching relation including a plurality of longitudinally differently positioned movable connector elements placed in tension'on loading of said clutch and a manually movable portion connecting the adjacent ends of said last mentioned-elements and pivotally mounted on one of the latter, said portion being movable substan-' tially intoparallelism therewith and placed in compression when sa-id clutch is loaded.

4. In a clutch mechanism, cooperating clutch elements one of which is movable relative to the other to effect loading and unloading, a clutch shipper movable to operate said movable" element, and mechanism for operating said shipper including a pivoted" operating member-having its free end normally disposed closelyadjacent said shipper and swingable outwardly from the same during loading of the clutch. 1 I

5. In a clutch mechanism, cooperating clutch elements one of which is movable relative to the other to effect loading and unloading, a clutch shipper movable to operate said movable element, and mechanlsm for operating said shipper including a member pivotally connected to said shipper, an operating member pivoted to said member, and

a link pivoted to said operating member on a non-coincident axis, and meansproviding an abutment affording aslidableand pivotal connection for the other end of said link."

6. In a clutch mechanism, cooperating clutch elements one of which is movable relative to the other to eifectloading and, un-

loading, a clutch shipper movable to operate said movable element, and mechanism for operating said shipper including a slotted member pivoted to said shipper, a bell crank operating member pivoted in the sl'o'tinsaid member, and a link pivoted to said-operating member on a non-coincident axis and ha ving at its other end a mounting permitting pivoting thereon and longitudinal'movement relative thereto.

7. In a clutch mechanism, cooperating clutch elements one of which is movable relative to the other to effect loading and unloading, a clutch shipper movable to operate said movable element, and mechanism for operating said shipper including a slotted member pivoted to said shipper, means affording asurfa ce upon which said member is slidable, an operating member pivoted in said slotted member, and a link pivoted to said operating member and connected for to said operating member on a non-coincident axis ancl having at its other end means permitting sliding and pivoting thereon.

9. In a clutch mechanism, cooperating clutch elements one of which is movable relative to the other to effect loading and releasing, a clutch shipper movable to operate said movable element, and mechanism for actu ating said shipper including a member pivotally connected to said shipper, a member pivotally mounted at one end, and means connecting the opposite ends of said memhers-and having a handle portion so arranged at an angle to said connecting means that it automatically maintains said members in clutch release position. I

10. In a clutch mechanism, coaxial driving and driven frictionclutch elements and means including an element reciprocable coaxially of said elements for forcing them into frictional engagement and for disengaging the same, and mechanism for moving said last mentioned elementto eflect clutching relation comprising a plurality of separately pivoted elements, one of said elements being longitudinally slidable, and means including an operating member pivotally mounted on said slidable element for placing said pivoted elements under increasing tension as the clutch is applied.

11. In a clutch mechanism, coaxial driving and driven friction clutch elements, and means including an element reciprocable co axially of said elements for forcing them into frictional engagement and for disengaging the same, and mechanism forv mov- 1 ing said last mentioned element to effect clutching relation comprising a plurality of separately pivoted longitudinally slidable elements, and means including an operating member pivotally mounted on one of said slidable elements for placing the same under I increasing tension as the clutch is applied.

12. In a clutch mechanism, coaxial driving and driven friction clutch elements and means including an element reciprocable coaxially of said elements for forcing them into frictional engagement and for disengaging the same, and mechanism for moving said last mentioned element to effect clutching relation comprising'a pivoted shipper yoke cooperating with saidcoaxial element,

a slidable member pivotally connected to said shipper yoke, a second slidable pivoted member, and means including an operating element pivotally connected to said slidable members for placing the same under increasing tension asthe clutch isloaded.

v 13. In a clutch mechanism, coaxial driving and driven friction clutch elements and means including an element reciprocable coaxially of said elements for forcing them into frictional engagement and for interrupting frictional engagement thereof, and means for moving said last mentioned element to effect clutching relation comprising a plurality of separately pivoted elements, oneof said elements being pivotally connected to said coaxial element while the other element is pivotally connected to a stationary abutment, and means including an operating member pivotally connected to said elements for placing the same under increasing tension as the clutch is loaded.

- 14. In a clutch mechanism, coaxial driving and driven friction clutch elements and means including an element reciprocable coaxially of said elements for forcing them into frictional engagement and for interrupting frictional engagement thereof including a shipper member, and means for moving said last mentioned element to effect clutching relation comprising a plurality of MORRIS P. HOLMES.

@EETEHCATFQ IGRREFTEQN Patent No. 1,670,154. Granted May 15, 1928, to

MGRRES P. HeLMEs.

It is hereby certified fimt ewe! appears in' the printed speeificatien of the above numbered paeem requiring eeweeien as iellews: Page 2, line 55, claim 1, for the Word "element" reed "eiezneees"; me? time the said Letters Patent should be read with this eeireetien fixer-e51: thai the same may eenferm to the record of the ease in the Patezat @fiiee Signed and sealed this 3rd day 0? .lu'y, A. D. 1928.

Me is Meme,

(Seal) Aeiing Gemmissiener 0f Patents. 

